Mobile terminal and method of writing protection for memory card in the mobile terminal

Abstract

A mobile terminal and a method of writing protection for a memory card in the mobile terminal, the mobile terminal comprising a body, battery, and battery cover, at least part of the battery cover made of conductive material; the body comprising: a memory card socket configured to accommodate a pluggable memory card; at least one sensing member on a surface or internal of the body and spaced from the battery cover, and configured to face the part made of conductive material when the battery cover is closed; a capacitance sensor connected to the at least one sensing member and configured to sense capacitance between the sensing member and battery cover; and a write control unit configured to determine whether the battery cover is removed according to capacitance sensed by the capacitance sensor, and prohibit data being written into the memory card when the battery cover is removed.

1 . A mobile terminal comprising a body, a battery and a battery cover, wherein,
 at least a part of the battery cover is made of conductive material;   the body comprising:   a memory card socket configured to accommodate a pluggable memory card;   at least one sensing member provided on a surface or internal of the body and spaced apart from the battery cover, and configured to face the part made of conductive material when the battery cover is in a closed state;   a capacitance sensor connected to the at least one sensing member and configured to sense capacitance between the sensing member and the battery cover; and   a write control unit configured to determine whether the battery cover is removed according to the capacitance sensed by the capacitance sensor, and prohibit data being written into the memory card when it is determined that the battery cover is removed.   
     
     
         2 . The mobile terminal according to  claim 1 , wherein,
 the write control unit is configured to determine that the battery cover is removed when the capacitance currently sensed by the capacitance sensor is smaller than a predetermined threshold; or   the write control unit is configured to determine that the battery cover is removed when a decrement of the capacitance currently sensed by the capacitance sensor in relation to a previously sensed capacitance is larger than a predetermined threshold.   
     
     
         3 . The mobile terminal according to  claim 1 , wherein the write control unit is further configured to allow data to be written into the memory card when it is determined that the battery cover is not removed. 
     
     
         4 . The mobile terminal according to  claim 1 , wherein the sensing member is a metal sheet formed on the surface or internal of the body through metal insert molding. 
     
     
         5 . The mobile terminal according to  claim 1 , wherein the at least one sensing member is spaced apart from the battery cover via air or a medium layer coated on a surface of the at least one sensing member, when the at least one sensing member is provided on the surface of the body. 
     
     
         6 . The mobile terminal according to  claim 1 , wherein the part made of conductive material is grounded. 
     
     
         7 . A method of writing protection for a memory card in a mobile terminal, wherein the method comprising:
 a capacitance sensing step: sensing capacitance between a sensing member provided in the mobile terminal and a conductive part of a battery cover of the mobile terminal;   a determining step: determining whether the battery cover is removed according to the capacitance sensed in the capacitance sensing step; and   a writing protection step: prohibiting data being written into a pluggable memory card of the mobile terminal when the determining step determines that the battery cover is removed.   
     
     
         8 . The method according to  claim 7 , wherein the writing protection step further comprising:
 allowing data to be written into the memory card when the determining step determines that the battery cover is not removed from the mobile terminal.   
     
     
         9 . The method according to  claim 7 , wherein in the determining step,
 determining that the battery cover is removed when the capacitance currently sensed in the capacitance sensing step is smaller than a predetermined threshold; or   determining that the battery cover is removed when a decrement of the capacitance currently sensed in the capacitance sensing step in relation to a previously sensed capacitance is larger than a predetermined threshold.